package com.SXJ.web;

import com.SXJ.pojo.User;
import com.SXJ.service.UserService;
import com.SXJ.service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class RegistServlet extends HttpServlet {

    private UserService userService = new UserServiceImpl();

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        //System.out.println(req.getServletContext().getRealPath("/"));
        //super.doPost(req, resp);

        //获取请求的参数
        String username = req.getParameter("username");
        String password = req.getParameter("password");
        String email = req.getParameter("email");
        String code = req.getParameter("code");

        //检查验证码是否正确
        if("abcde".equalsIgnoreCase(code)){
            //检查用户名是否可用
            if(userService.existsUsername(username)){
                //不可用 ，跳回注册页面
                req.setAttribute("msg" , "用户名已存在");
                req.setAttribute("username" , username);
                req.setAttribute("email" , email);

                System.out.println("用户名：" + username + "已存在");
                req.getRequestDispatcher("/pages/user/regist.jsp").forward(req , resp);

            }else{
                //调用 service 保存到数据库
                userService.registUser(new User(null , username , password , email));
                //跳到注册成功页面
                req.getRequestDispatcher("/pages/user/regist_success.jsp").forward(req , resp);
            }
        }else{
            //不正确，跳回注册页面
            //把回显信息，保存到request 域中
            req.setAttribute("msg" , "验证码错误");
            req.setAttribute("username" , username);
            req.setAttribute("email" , email);

            System.out.println("验证码[" + code + "]错误");
            req.getRequestDispatcher("/pages/user/regist.jsp").forward(req , resp);
        }
    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //super.doGet(req, resp);
    }
}
